72016040

素因数分解:

$2^3\times 5^1\times {\mathrm{1800401}}^1$

素因数の和:1800412

約数の個数: 16

約数和(自身を含む): 162036180

約数和(自身を除く): 90020140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1800401, 3600802, 7201604, 9002005, 14403208, 18004010, 36008020, 72016040]

約数ペア:

[(1, 72016040), (2, 36008020), (4, 18004010), (5, 14403208), (8, 9002005), (10, 7201604), (20, 3600802), (40, 1800401)]